Microbial Biology Major

Hi everyone,
I’m currently a rising senior in high school and I’m interested in the microbial biology major at Berkeley (assuming I even get in!). Is this major similar to microbiology, and in what ways are they different? Is microbial biology impacted/a very difficult major at Berkeley? Also, does the College of Natural Resources have certain advantages over the College of Letters & Science? Any feedback is appreciated, thanks so much for reading!

Anyone?